Mark Zuckerberg Celebrates Facebook's 21st Birthday.

Facebook is still the most famous social media platform, and many people still rate Facebook as the number one platform of social media. It is a fact that Facebook changed the entire meaning of social media on the internet, and it revolutionized social media forums.

Facebook was launched by Mark Zuckerberg on the 4th of February 2004, and he posted on his Facebook page that today is his oldest child's 21st birthday, which means that today Facebook is 21 years old.